[HTML][HTML] Coiled quarter wavelength resonators for low-frequency sound absorption under plane wave and diffuse acoustic field excitations
To reduce their space requirement, quarter wavelength resonators are coiled up into a spiral
to have the shape of a flat cylinder. The practical implementation of these resonators is …
to have the shape of a flat cylinder. The practical implementation of these resonators is …
Estimation of acoustical materials sound absorption coefficient under oblique incidence plane wave and diffuse field via Allard model inversion
M Sciard, A Berry, F Sgard, T Dupont… - Building …, 2024 - journals.sagepub.com
A technique for estimating the sound absorption of materials under oblique incidence plane
wave and diffuse field excitations is proposed. It requires a mobile loudspeaker and a pair of …
wave and diffuse field excitations is proposed. It requires a mobile loudspeaker and a pair of …